I have a problem that I'm trying to solve on an encounter map that I am making for my gaming group. In the map, I have a major, paved road that I am trying to figure out how to texture properly. The problem arises because the road isn't running vertically or horizontally and the texture i want to use isn't really suitable for slanted orientations. Does anyone know how I could either rotate the texture or, generate decent looking cobblestone that can have an arbitrary rotation? Oh, and I'm using Gimp.
Here is a picture of the very much unfinished map just for reference.
Click image for larger version. 

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